This is a case (USB can charge, but can't connect to pc) from Sony forum. Not sure your case similar to this one? You tested your phone with other computer?
http://talk.sonymobile.com/thread/50440?start=0&tstart=0

now i know, before this i connect with pc running win XP and win 7 32 bit, but when i connect to win 7 64 bit, it running smoothly... but why this happen..

Answer replied from Sony forum members, it look like something related to windows problem, not the phone. My one OK with Win XP, Win 7 32bit and Win 7 64bit.

but i still can't detect with flashmode even with msc n debugging on

So, currently you can browse your SD card, but when use Flashtool, the Flashtool can't detect your phone?
Try re-install ADB driver again.

cmna nk root arc s 4.1.B.0.587?

da cari..tp pening

Rooting procedures:-
1) Install Flashtool. Flashtool file can get from:-
http://androxyde.github.com/

2) After install Flashtool, install ADB driver from Flashtool\drivers folder (file name: Flashtool-drivers). Make sure check the component "Sony Ericsson Xperia arc,...drivers" during Flashtool driver installation.

3) (Optional) Flash 4.1.B.0.587 firmware using Flashtool (see Flashtool procedures below). (This step is optional if your phone already in 4.1.B.0.587 firmware).
(LT15i 4.1.B.0.587 Generic Global World) http://forum.xda-developers.com/showthread.php?t=1836071
(LT18i 4.1.B.0.587) http://hotfile.com/dl/167361348/43349db/LT...716%29.ftf.html

4) Flash 4.1.B.0.431 downgrade kernel using Flashtool (see Flashtool procedures below). (file name: 1_lt18i_4.1.B.0.431_kernelDowngrade.ftf)
https://www.box.com/s/ivau06ox4wu4p4p8y3ch
Remark: After reboot, will get a lot of error messages. Ignore it. Go to Menu\Settings\Developer options, then check "USB debugging". After that, go to Menu\Settings\Security, check "Unknown sources".

5) Root the phone with DooMLoRD rooting toolkit.
http://forum.xda-developers.com/showthread.php?t=1601038

6) Flash back 4.1.B.0.587 kernel using Flashtool (see Flashtool procedures below).
Arc kernel only: http://minus.com/l2nHaaZknNLkx
Arc S kernel only: http://minus.com/lbmSo2ZcMtQban

7) Done. your phone should be rooted with 4.1.B.0.587 firmware now.


Flashtool procedures:-
1) Launch Flashtool program. [Don't click on the Flashmode (Thunder icon)]

2) Drag and drop the *.ftf (firmware or kernel files in ftf format) into Flashtool main window and the Flashmode window will automatically open with the *.ftf file.

3) Check "No final verification" at bottom right of Flashmode window and click "OK".

4) A messages pop-up (1-Unplug the device,...,4-Plug the USB cable). Turn off phone, press and hold "BACK" button, then connect the phone to computer.

5) It will start flashing the firmware or kernel.

6) Once completed, disconnect phone from computer.

7) Close Flashtool program.

This post has been edited by pc-ox: Dec 1 2012, 11:19 AM

guy mintak tolong skit.how to oc?i try guna setcpu,apply on boot tapi bila restart dia back to normal.cane?
ics 4.0.4 rooted

Thanks

---

Added on September 29, 2012, 5:25 pmdah root

cmna nk instal custom rom lak?
rom apa yg stabil n smooth?



This post has been edited by aidilchica: Sep 29 2012, 05:25 PM

recommended pureness rom
http://forum.xda-developers.com/showthread...ghlight=upgrade

im using version 12 now
to upgrade version 13, do i need full wipe?
anyone know?
dunwan install all apps one by one again

from this step, which one i can skip?
1.Factory reset in cwm
2.wipe cache partition
3.wipe dalvik cache
4.Format /system (in mounts and storage)
5.Format /cache
6.Format /Data
7.Install Xperia_Ice_Cream_Pureness_build_13.00.zip
8.Install patch for your phone model
9.Reboot now and you are done

Dalvvik wipe then install the rom...

hey guys! is android ics upgrade available in malaysia already? i've been using gingerbread for ages, thinking of upgrade but in setting about phone, i cant locate anything relating to the update yet

ICS upgrade already available for Malaysia. You can update phone through PC Companion or SE Update service.

but i dont understand the part - prepare ur phone for update...the steps are not clear thou...been annoyed by this for long

it says u nid to plug in computer while holding the 'back' button...nothing happen after i did that

Do you turn-off your phone before press and hold "back" button, then connect usb to computer?
If still can't update through PC Companion, use SE update service (download from SE website).

my Arc S using stock rom cannot upload pic using whatsapp
anyone else have same probolem?

Se arc ics slow..better use gb...xperia mini pro have new update for ics..how about arc?

Guys I heard xpeia arc s is tested with the android 4.2. Normal arc wil enjoy it too or not if the update came out??

Hope Sony will still give you guys the update.

currently using this...



buttery smooth, a slight save on the battery...

This post has been edited by mf_yamato: Oct 13 2012, 10:27 AM